Metallic spool



W. C. MILLS METALLIC SPOOL Aug. l, 1933.

Filed June 9,- 1930 l I I I I I |||l vigil Patented Aug. 1, 1933 PATENTOFFICE 1,920,421 l v fimrriiLLIc` srofoL Wallace C. Mills, Rockford,Ill., assigner to J. L.

Clark Manufacturing poration of Illinois Co., Rockford, Ill., a Cor-Application June 9, 1930.,4 serial No. 459,870

10 Claims.

The invention pertains tok spools or reels of the type embodying atubular body usually constructed of sheet metal and having'a pair ofheads each composed of one or more sheetmetal plates and secured uponopposite ends of the body.

The primary object of my invention is to provide a spool of thischaracter in which the heads are secured on the ends ofthe tubular bodyin a manner' such as to lend strength and rigidity to the connection aswell as to present a neat appearance.

A common method of fastening a spool head on the end of a tubular bodyconsists in providing a circular series of lugs or tabs formed on theend of the bodyY and bentl into engagement-with'a head plate to securethe latter in position. The

present invention involves such a method ofv fastening a head on thetubular body, andv a further and more speciiic object thereof is. toimprove this method of fastening by the provision of an annulus bent.into engagement With the fastening lugs so yas to bind or clamp themfirmly upon the head plate and at the same time entirely conceal thesame.

The objects of the invention thus generally set forth, together withother and ancillary advantages are attained by the construction andv arrangement illustrated in the accompanying draw-f ing forming parthereof, wherein:

Figure 1 is a fragmentary sideelevational view of a spoolwith one endportion shown in section to illustrate the construction employed.

Fig. 2 is a fragmentary transverse sectionalA 3 Fig. 1,

modification.

Fig. 6 is a plan view of a spacer ringemployed in the form shown in Fig.5.' A' j The spool comprises a tubular body`7 having heads'8 secured atopposite ends thereof. The body 7 is formed from a flat sheet of metalbent into cylindrical form and out at opposite ends to form tabs or lugs9 spaced a short distance apart in a circular series. Each headcomprises a circular plate or disk 10 havingits peripheraledge curled asat ll'. Spaced radially inwardly from said peripheral edge is a circularseries of slots l2 adapted to` receive the lugs 9.

The lugs 9 are of a length substantially greater than the thickness ofthe disk 10 so that when Fig. 5' is a similar View illustrating anotherthe lugs are entered through the slots with the disk seated upon the endedges of the body formed between the lugs, the latter will project asubstantialdistance beyond thedisk. The lugs are thus capable of beingbent transversely of the body into engagement with the disk.

Forvthe purpose of clamping the securing lugs 9v firmly upon the diskand at the same time concealing the lugs, thehead is constructed toprovide an annulus 13.` This annulus in the -embodiment shown in Fig. 1is made integral with the disk 10 by forming therein an outwardly eX-tending fold Whose open end is disposed within and closely adjacent tothe end of the body. The lugs 9 are thus disposed adjacent the outer legof vthe ,fold so that by bending the latter outwardly and downwardlytoward the disk the lugs are bent iiat upon the disk'in underlyingrelation to the annulus. t

A n end closure plate 14 for the tubular body comprises injthis instancea disk'formed integral with the annulus and hence with the disk 10. vThus the inner leg of the fold constituting the annulus may be extendedinwardly to form the plate 14 which isv centrally apertured to receivethe endofan inner core 15 having, its ends curled outwardly intoengagement with said end plate.

I have found that the annulusthus provided serves effectually to bindthe lugs 9 rmly against the disk 10 1 so as to insure that the headshall be fastened securely on the end of the body with the lugsconcealed from view to the end that the spool shall present a neatappearance.`

I In theembodiment illustrated in Fig. 4, the

head-comprisesfa circular plate or disk 10 and a separately formed endclosureplate 14'. kThe disk 10*l terminates in a ange llwithin andconcentric to the end of the body, and an annuluslB' is in the form of afold formed integral with the plate 14'. The annulus in this instancere'ceives-both the lugs 9 and the flange, so.v` that the'free edge ofthe annulus is curled around:` theflange 16 and interlocked between thelugs and -thedisk 10 at a point adjacent the body'l., The end closureplate `le may be cen-` trally apertured-to receive the end of an innercore 15' as in the case of the form shown inv Fig. l.

As shownA in Fig. 5, the invention is applicable also to a spoolconstruction in which the head comprises a face plate 17 and a backingplate 18 separated at a point adjacent the body by a spacer member vinthe form of a ring 19 encircling the body, notches 20 being cut in thering to receive lugs 9. An `annulus 13a is formed integral with the faceplate 17 in a manner similar to the annulus 13 (Fig. l), and this plateis extended inwardly to form an'end closure plate 14n3L as in 'theconstruction shown in Fig. 1. The two plates The double end wallprovided in this instance.

results in a more rigid construction, especially when used in connectionwith the spacer ring combined with the clamping action of the annulus onthe securing lugs 9.

I claim as my invention:

` 1. VA spool comprisinga` tubular body having a plurality of lugsprojecting from'one end thereof, and a head comprising a disk extendingradially from said body and having a plurality of slotstherein throughwhich said lugs are adapted to pass, a second disk vwithin lthe body andforming an end closure plate therefor, and an annulus formed integralywith the slotted disk andbent outwardly upon said lugs with the latterdisposed in transverse relation to the body.

Y2. A. spool comprising a tubular body having 'a plurality 'of lugsAprojecting vfrom one end thereof, and a head comprising a disk extendingradially from said body and engaging therewith so to be held againstmovement in one direction axially of the body, a second disk within thebody and forming an end closure plate therefor, `and an annulus in theform of a fold dis` posed wholly to one side of said lugs and having onelegrfjormed integral with one of said disks, said annulus being bentupon'said lugs in transverse relation to'the body. v

3. A spool comprising a tubular body having a pluralityof lugsprojecting from oneend thereoand a head. comprising a disk extendingradially jfrorn` said body and havinga plurality vof slots thereinthrough which said lugs are adapted topass, a second disk within thebody and forming an end closureplate therefor` and an annulus in theformof afold the opposed legs of which are'` respectively formed integralwith the two disks and bent from a point within the body upon lugs intransverse relation to the body.

fi. A. spoolcomprising a tubular body having a plurality of lugsprojectingfrom one end thereof, and a headl for the spool comprising apairof disks encircling the body and. each having aseries oifslotsthrough which said lugs are` adapted to pass, andan annulus formedintegral with one of said disks and bent radially outwardly from a pointwithin the body Ainto'overlying'relation to said lugs transversely ofthe body. g 5. A spool comprising a tubular body having a pluralityof-lugs'projecting from one end thereof, and a head for the spoolcomprising a pair of disks encircling the body, the-innermost one ofsaid disks engaging the body so as to be held against axial movementthereon in one direction, and an annulus formed integral with one ofsaid disks and bent radially outwardly from a point within the body intooverlying relation to said lugs transversely of the body, and an annularspacer member interposed between said two disks adjacent the body.

6. A, spool comprising a tubular body having a plurality of lugsprojecting from one end thereof,

and a head comprising a pair of disks encircling lthe body with saidlugs extending therethrough, a closure plate for the body, and anannulus in the form of a fold the opposed legs of which are respectivelyformed integral with one of said disks and said closure plate, saidannulus being bent upon said lugs in transverse and a head for the spoolcomprising a disk having a series of slots therein through which saidlugs project with a'portion of the disk extending in- `wardly beyondthe` slots and shaped to forni an annulus in the form of a fold ofsubstantial depth,`

said lugs being bent outwardly in transverse relas tion to the body andsaid annulus being bent outwardly into clamping relation with said lugswith the bight of said fold forming an outer rounded edge for the.annulus.

9. Aspool comprising a tubular body having a plurality of lugsprojecting from one end thereof, and a head comprising a disk extendingradially from said body and having a plurality of slots therein throughwhich said lugs are adapted to pass, a second disk within the body andformt* ing an end closure plate therefor, said first disk having aportion extending beyond said slots and bent reversely upon said lugs intransverse relation to the body, and said second disk having a `partformed integral therewith bent into overlying relation to said bentportion of the first disk. 10. A spool comprising a tubular body having'afplurality of lugs proiecting from one end thereo*l and a headcomprising a disk extending radially from said body and slotted toreceive said lugs, a separately formed second disk within the body andforming an end closure plate therefor, said rst disk having a portionextending beyond said slots and bent reversely upon said lugs intransverse relation to the body, and said second disk having a part bentinto overlying relation to said bent portion of the rst disk and curledaround the same to form a smooth rounded surface. n,

` "WALLACE C. MILLS.

